CN104014049A - Control system and control method of infusion pump - Google Patents
Control system and control method of infusion pump Download PDFInfo
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- CN104014049A CN104014049A CN201410288114.0A CN201410288114A CN104014049A CN 104014049 A CN104014049 A CN 104014049A CN 201410288114 A CN201410288114 A CN 201410288114A CN 104014049 A CN104014049 A CN 104014049A
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- infusion pump
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- dripping
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Abstract
The invention discloses a control system and a control method of an infusion pump. The control system comprises a detection module and a recognition control module, wherein the recognition control module is used for detecting liquid dropping action of a drip cup inside an infusion pump pipeline, subsequently the detected liquid dropping action is processed by the recognition control module so as to obtain the dropping speed, the dropping speed is compared with a set dropping speed so as to obtain the error, and an alarm is made or the dropping speed of the drip cup is adjusted according to the obtained error. By adopting the control system and the control method, needle deviation can be effectively prompted, the error is relatively small, and the phenomenon of misinformation of an existing infusion pump is eliminated.
Description
Technical field
The control system of infusion pump and control method while the present invention relates to start.
Background technology
Infusion pump in the market can realize timing, quantitative infusion, i.e. interval at a fixed time, in patient body, input quantitative medicine, due to each patient's state of an illness difference, when infusion, need to adjust infusion time and the infusion amount of dress according to practical situation, but the error of existing infusion pump in infusion time and infusion amount is larger, especially in the time that patient occurs to run pin phenomenon in infusion process, also there is very large problem to the precision that runs pin identification in existing infusion pump, the stepping that the pressure limit of running pin identification is 45KP-120KP, range of error is larger, easily there is false alarm action, cause nurse need to come and go ceaselessly to observe the whether real race pin of infusion pump, increase medical personnel's workload.
Therefore, along with the modern process of medical treatment, how to provide one more accurately to control infusion pump, infusion pump control system and the control method of accurately locating the accidents such as race pin are industry technical problems urgently to be resolved hurrily.
Summary of the invention
The object of the invention is in order to solve above-mentioned problems of the prior art, the control system of infusion pump has been proposed, be provided with detection module and identification control module, detect the dropping liquid action of dripping kettle in infusion pump pipeline by identification module, then by identification control module, the dropping liquid action detecting is processed and drawn a speed, and contrast with the speed of dripping of setting, draw both errors, point out and report to the police or adjust the speed of dripping of dripping kettle according to drawn error.
The control method that the invention allows for infusion pump, key step comprises:
RF transmitter sends pulse duration frequency signal, and dropping liquid action causes pulse duration frequency signal to be interrupted, and by infrared receiver received pulse frequency signal, detection input module is processed into the pulse duration frequency signal receiving switching square wave the output of low and high level;
Enumerator is processed switching square wave, dropping liquid action is added up, and draw the current speed of dripping, and current speed is sent into and dripped fast comparator;
Drip fast comparator current speed and setting value compared, current speed draw current speed and set value between error amount, revolution controller according to error amount to motor
revolutionadjust, central processing unit, according to error amount, is controlled player and display prompts and is run pin and a transfusion sky.
The present invention, by detecting the speed of dripping of dropping liquid, does not need to carry out pressure stepping, just can run pin identification, and can just can judge accurately and run needle-like state at force value ± 1KP of 18KP, and carries out only liquid protection.Avoid existing infusion pump need to manually determine whether to run the drawback of pin.
Brief description of the drawings
Below, the present invention is described in detail for contrast accompanying drawing and preferred embodiment, wherein:
Fig. 1 is fundamental diagram of the present invention.
Detailed description of the invention
Below in conjunction with drawings and Examples, invention is described in detail.Should be appreciated that the only technical scheme in order to explain that the present invention proposes of the explanation of specific embodiment, and non-limiting the present invention.
As shown in Figure 1, the control system of infusion pump proposed by the invention, be provided with detection module and identification control module, detect the dropping liquid action of dripping kettle in infusion pump pipeline by identification module, then by identification control module, the dropping liquid action detecting is processed and drawn a speed, and contrast with the speed of dripping of setting, draw both errors, point out and report to the police or adjust the speed of dripping of dripping kettle according to drawn error.
In the present embodiment, detection module comprises the dropping liquid induction apparatus being made up of RF transmitter and infrared receiver and detects input module, detect input module and produce pulse duration frequency signal, output after RF transmitter modulation, dropping liquid action can cause the terminal of pulse duration frequency signal, infrared receiver receives this pulse duration frequency signal, by detecting input module, the pulse duration frequency signal receiving is processed into the switching square wave of low and high level and exports.
The identification control module of the present embodiment comprises central processing unit, by enumerator, a fast comparator, revolution controller, player and the display of central processing unit control.Enumerator adds up dropping liquid action, according to the model of predefined kettle, the data such as capacity, dropping liquid action is added up and is processed into and drip speed, dripping fast comparator compares the current speed of dripping drawing after processing with the speed of dripping of setting, draw both errors, revolution controller is according to this error, send corresponding instruction to motor module, motor module receives corresponding instruction, rotating speed to motor is adjusted, flow control valve and motor interlock arrange, be positioned on the pipeline that drips kettle below, current signal that can actuating motor module, flow to pipeline is controlled.When dripping the error that draws of fast comparator while exceeding the error of setting, central processing unit can be pointed out warning by player and display.
Further, a parameter can also be set module is set, can drip speed, capacity and drip the model of kettle according to practical situation setting.
The control method of infusion pump proposed by the invention, main process is:
RF transmitter sends pulse duration frequency signal, and dropping liquid action causes pulse duration frequency signal to be interrupted, and by infrared receiver received pulse frequency signal, detection input module is processed into the pulse duration frequency signal receiving switching square wave the output of low and high level;
Enumerator is processed switching square wave, dropping liquid action is added up, and draw the current speed of dripping, and current speed is sent into and dripped fast comparator;
Dripping fast comparator compares current speed and setting value, current speed draws the error amount between current speed and setting value, revolution controller is adjusted the rotating speed of motor according to error amount, central processing unit, according to error amount, is controlled player and display prompts and is run pin and a transfusion sky.
When use, be stuck in dripping in kettle on infusion pump pipeline, and make the pipeline that drips kettle lower end by flow control valve by dripping fast induction apparatus, flow control valve can be adjusted to the predetermined fast gap of dripping automatically according to parameters.
The dropping liquid being detected by drop induction apparatus moves, after detecting input module processing shaping, form the switching square wave of low and high level, send into enumerator, enumerator is processed switching square wave, and cumulative dropping liquid action, draw to drip speed and send into and drip fast comparator, drip fast comparator the fast information comparison that fast sum counter is sent into of dripping of user setting, the task of dripping fast comparator is exactly to calculate the fast and current fast error amount of dripping of setting, when be greater than ± 10 ℅ of error amount, can send instruction to revolution controller, make motor module drive stepping motor adjust action, when error amount is negative, can reduce the gap of flow control valve, making to drip speed slows down, error amount is the gap of timing meeting augmented flow control valve, making to drip speed accelerates.
When error amount is less than or equal to-20% of setting value, and have the decay of continuous 6 times, central processing unit sends instruction to player and display, and player and display prompts are run pin.When error amount is less than or equal to-20% of setting value, and dropping liquid signal exceedes 10 seconds in the duration of decay continuously, and central processing unit sends instruction to player and display, and player and display prompts are run pin.Do not receive dropping liquid signal when enumerator exceedes certain time length, central processing unit sends instruction to player and display, and player and display prompts transfusion are dripped empty.When the rotating speed of revolution controller control step motor reaches certain rotating speed, central processing unit sends instruction to player and display, and player and display prompts transfusion are dripped empty.
The concrete value of above-mentioned error amount is to get according to repetition test repeatedly, is to realize optimum referential data of the present invention, and according to system structure of the present invention and method, in the time that range of error is limited, other numerical value of employing also should belong to protection scope of the present invention.
Claims (10)
1. a control system for infusion pump, is characterized in that, comprising:
Detection module, for detection of the dropping liquid action of dripping kettle in infusion pump pipeline;
Identification control module, processes the dropping liquid action detecting to draw and drip speed, and contrast with the speed of dripping of setting, and draws both errors, point out to report to the police or adjust drip the droplet fast of kettle according to drawn error.
2. the control system of infusion pump as claimed in claim 1, it is characterized in that, described detection module comprises the dropping liquid induction apparatus being made up of RF transmitter and infrared receiver and detects input module, described detection input module produces pulse duration frequency signal, output after RF transmitter modulation, infrared receiver receives described pulse duration frequency signal, by detecting input module, the pulse duration frequency signal receiving is processed into the switching square wave of low and high level and exports.
3. the control system of infusion pump as claimed in claim 1, is characterized in that, described identification control module comprises:
Enumerator, adds up described dropping liquid action, and is processed into a speed;
Drip fast comparator, the current speed of dripping is compared with the speed of dripping of setting, draw both errors;
Revolution controller, according to described error, sends corresponding instruction to motor module;
Motor module, receives corresponding instruction, and the rotating speed of motor is adjusted;
Flow control valve, is located on the pipeline that drips kettle below, for the current signal of actuating motor module, the flow of pipeline is controlled;
Central processing unit, manages and controls above-mentioned each parts.
4. the control system of infusion pump as claimed in claim 1, is characterized in that, also comprises that the player, display and the parameter that electrically connect with central processing unit arrange module, and described parameter arranges module for the model of dripping speed, capacity and dripping kettle is set.
5. a control method for infusion pump, is characterized in that, comprises the steps:
Step 1: RF transmitter sends pulse duration frequency signal, dropping liquid action causes pulse duration frequency signal and interrupts, receive described pulse duration frequency signal by infrared receiver, detect input module the pulse duration frequency signal receiving is processed into the switching square wave of low and high level and exports;
Step 2: enumerator is processed described switching square wave, adds up dropping liquid action, and draws the current speed of dripping, and current speed is sent into and dripped fast comparator;
Step 3: drip fast comparator current speed and setting value are compared, current speed draws the error amount between current speed and setting value, described central processing unit is according to error amount, control player and display prompts and run pin and a transfusion sky, revolution controller is adjusted the revolution of motor according to described error amount.
6. the control method of infusion pump as claimed in claim 5, is characterized in that, when error amount is less than or equal to-20% of setting value, and has the decay of continuous 6 times, and central processing unit sends instruction to player and display, and player and display prompts are run pin.
7. the control method of infusion pump as claimed in claim 5, it is characterized in that, when error amount is less than or equal to-20% of setting value, and dropping liquid signal exceedes 10 seconds in the duration of decay continuously, central processing unit sends instruction to player and display, and player and display prompts are run pin.
8. the control method of infusion pump as claimed in claim 5, is characterized in that, does not receive dropping liquid signal when enumerator exceedes certain time length, and central processing unit sends instruction to player and display, and player and display prompts transfusion are dripped empty.
9. the control method of infusion pump as claimed in claim 4, is characterized in that, when revolution controller control step motor
revolutionreach certain
revolution, central processing unit sends instruction to player and display, and player and display prompts transfusion are dripped empty.
10. the control method of infusion pump as claimed in claim 4, is characterized in that, when the absolute value of error amount be more than or equal to setting value 10% time, central processing unit sends instruction to revolution controller, motor module and motor are adjusted rotating speed according to instruction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288114.0A CN104014049A (en) | 2014-06-25 | 2014-06-25 | Control system and control method of infusion pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410288114.0A CN104014049A (en) | 2014-06-25 | 2014-06-25 | Control system and control method of infusion pump |
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| CN104014049A true CN104014049A (en) | 2014-09-03 |
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| CN201410288114.0A Pending CN104014049A (en) | 2014-06-25 | 2014-06-25 | Control system and control method of infusion pump |
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| CN (1) | CN104014049A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107510870A (en) * | 2017-10-19 | 2017-12-26 | 湖南中医药大学 | A kind of electric infusion device |
| CN108578823A (en) * | 2018-04-12 | 2018-09-28 | 深圳麦科田生物医疗技术有限公司 | a kind of infusion method and device |
| CN114796705A (en) * | 2022-04-15 | 2022-07-29 | 滁州瑞谷生物技术有限公司 | Empty detecting system and transfer pump drip |
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| US5899665A (en) * | 1997-06-11 | 1999-05-04 | Alaris Medical Systems, Inc. | Method and apparatus for controlling infusion volume |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3601124A (en) * | 1968-08-29 | 1971-08-24 | Frank L Petree | Fluid flow regulator |
| US4507112A (en) * | 1982-04-05 | 1985-03-26 | Ipco Corporation | Infusion monitor |
| US4525163A (en) * | 1982-08-06 | 1985-06-25 | Nuvatec, Inc. | Intravenous set flow control device |
| US4909786A (en) * | 1987-12-17 | 1990-03-20 | W. M. H. Kerbosch B.V. | Apparatus for controlling the flow of an infusion fluid in an infusion system |
| US5899665A (en) * | 1997-06-11 | 1999-05-04 | Alaris Medical Systems, Inc. | Method and apparatus for controlling infusion volume |
| CN2376304Y (en) * | 1999-07-09 | 2000-05-03 | 党永辉 | Transfusion automatic monitoring and controlling instrument |
| CN2546040Y (en) * | 2002-02-19 | 2003-04-23 | 张亚平 | Automatic measuring controller for drip speed |
| CN201171822Y (en) * | 2007-11-05 | 2008-12-31 | 余海鸣 | Transfusion infrared alarm for medical use |
| CN101499106A (en) * | 2008-01-30 | 2009-08-05 | 蒲卫 | Digitized hospital bed monitoring network system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN107510870A (en) * | 2017-10-19 | 2017-12-26 | 湖南中医药大学 | A kind of electric infusion device |
| CN108578823A (en) * | 2018-04-12 | 2018-09-28 | 深圳麦科田生物医疗技术有限公司 | a kind of infusion method and device |
| CN114796705A (en) * | 2022-04-15 | 2022-07-29 | 滁州瑞谷生物技术有限公司 | Empty detecting system and transfer pump drip |
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Address after: 518000 Guangdong City, Baoan District Province, Shenzhen District, Xixiang Road, the text of the text of the station after the oil station, building C, building 107, No. 108 (office space), 3 Applicant after: Shenzhen city energy Polytron Technologies Inc Address before: 518000 Guangdong City, Baoan District Province, Shenzhen District, Xixiang Road, the text of the text of the station after the oil station, building C, building 107, No. 108 (office space), 3 Applicant before: Shenzhenshi WanJuyuan Technology Co., Ltd. |
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| RJ01 | Rejection of invention patent application after publication | ||
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Application publication date: 20140903 |